-
DCS
的
SFC
组态过
程
SFCs(Sequential
Function
Charts):EMERSON
DeltaV
的
一
< br>种
CONTROL
MODULE(
控制模块
)
。
Using SFC-T101
-T101:Sequential
Function
Chart
for
automated
STARTUP
and
SHUTDOWN
-T101
：
Named Set
NS-101, 1=STARTUP
255=SELECT SEQUENCE
-102
：联锁马达控制模块（进料马达）
-102<
/p>
：常规
PID
控制模块（进料流量）
-101
：
电磁阀控制模块
组态步骤：
Step Named
Set
NS-101
using DeltaV
Explorer.
Step
Properties
and names and
values as shown below.
Named Set
NS-101(Name- Case sensitive)
Visible
User Selectable
1
=STARTUP
YES
YES
255=SELECT SEQUENCE
YES
NO
Step
Control
Studi
o to create Sequential Function
Chart
SFC-T101
.Select
New
and change Algorithm
Type to
Sequential Function Chart.
Step parameter
MESSAGE
(Named Set,NS-101).
Step Sequential Function
Chart using
Steps
,
Transition
and
Terminations
from
the
All SFC
Items
Palette.
HOLD_SFC
‘
MASSAGE
< br>’
:=
‘
NS-T101:SELECT
SEQUENCE
’
+
‘
MAS
SAGE
’
=
‘
NS-T101:STARTUP
’
OPEN_BLK_VLV
Open the block valve XV-101
+
‘
Wait for the block valve to
open XVSTAT-101
SET_FLOW_RATE
Set
the flow rate to 50GPM FIC-102
+
Wait for flow valve to be >30% open
START_PUMP
Start pump MTR-102
+
Wait for pump
start